Radio and Television signals are still broadcast from the CN Tower. It is the world's tallest free-standing structure at a height of 553.33m (1,815 ft., 5 inches). At 342 m (1,122 ft) there is the "Glass Floor" and Outdoor Observation Deck.
This tower is second only to Ostankino Tower (540 M) in Moscow, but there are plans to increase the height of Ostankino in 2007 to a height of 568 M.
You had better go up the CN Tower while you can still claim it's the biggest!
I thought it was totally bogus when they changed the name. It's as silly as changing the name of an arena or a major structure like the Pan Am Building to the Met Life building, or RCA to GE Building in New York City. CN built it, and even if they sold it to Air India, to most people it will always be the CN Tower, as in CANADIAN NATIONAL RAILWAY. I'm glad I got a souvenir thermometer of the tower with the CN noodle on it while I could!
If the Eiffel Tower was sold to France Telecom, would you call it "The France Telecom Tower"?
Dieter/
P.S. If you have never heard of Ostankino, it's worth checking out, especially if it's going to regain it's status as the tallest free-standing structure in the world;
http://www.skyscraperpage.com/cities/?buildingID=24
http://www.tvtower.ru/
D/